package org.gwu.seuss.server.command;

import org.gwu.seuss.communication.request.ClientRequest;
import org.gwu.seuss.communication.request.ServerResponse;
import org.springframework.util.Assert;

public class DeleteFileCommand extends UserCommandBase implements Command {

	public DeleteFileCommand(ClientRequest req) {
		super(req);
	}

	@Override
	public ServerResponse execute() throws Exception {
		String username = req.getUsername();
		String password = req.getPassword();
		String filename = req.getFileName();

		Assert.hasText(username, "Username is not provided.");
		Assert.hasText(password, "Password is not provided.");
		Assert.hasText(filename, "Filename is not provided.");

		userService.authorizeUser(req);
		log.info("User " + username + "requested to delete " + filename);

		int result = fileService.deleteFile(username, filename);

		return getServerResponse(result, "Deleted " + filename);
	}
}